This started happening a few days ago, not really sure where or what's going wrong here. I've seen a lot of similar posts, however nothing seems to exactly match what's going on here:

Steps to reproduce:
1) Reboot
2) Log into KDE
3) Wait 4~ minutes for raid array to mount, meanwhile staring at a black screen. (I can log in via root/normal user on other runlevels while this is happening)
4) It eventually mounts, and I'm presented with my normal desktop